Strange pits on 2 million-year-old teeth may reveal which human relatives are closely related to each other - Live Science

Small clusters of pits in tooth enamel may be traced back to a single evolutionary lineage millions of years ago.A mysterious type of pitting on the dental enamel of Paranthropus, a genus of extinct human relatives, has baffled experts for decades. But new research suggests the clusters of pits are genetic rath…